Trim Height Measurement
Trim height is a predetermined measurement relating to vehicle ride height.
Incorrect trim heights can cause the vehicle to bottom out over bumps, damage to
the suspension components and symptoms similar to wheel alignment problems. Check
the trim heights when diagnosing suspension concerns and before checking the wheel
alignment.
Perform the following before measuring the trim heights:
| • | Set the tire pressure to the specifications shown on the certification
label. Refer to
Vehicle Certification Label
in General Information. |
| • | Check the fuel level. Add additional weight if necessary to simulate a
full tank. |
| • | Make sure the passenger and rear compartments are empty, except tor the
spare tire. |
| • | Make sure the vehicle is on a flat and level surface, such as an alignment
rack. |
| • | Check that all the vehicle doors are securely closed. |
| • | Check that the vehicle hood and rear deck lids are securely closed. |
| • | Check for installed after market accessories or modifications that could
affect trim height measurement. |
Important: All dimensions are measured vertical to the ground. Trim height should be within
22.0 mm (0.87 in) to be considered correct.
Measuring the Bumper Heights
Use the following procedure to check the front bumper height:
- Jounce the front and rear of the vehicle a few times and allow the suspension
to settle.
- The front bumper height measurement is taken from the front fascia feature
line to ground level. Measure both sides and average the measurements.
- Compare the measurement to the front bumper curb height specification.
Refer to
Trim Height Specifications
.
- If the measurement is outside of the specified range, replace the front
springs. Refer to
Strut, Strut Component, and Spring Replacement
in Front Suspension.
- Using your hands, lift the rear bumper approximately 38 mm (1.59 in).
- Gently remove your hands and allow the vehicle to lower.
- Using your hands, jounce the rear of the vehicle downward approximately
38 mm (1.59 in).
- Gently remove your hands and allow the vehicle to rise.
- The rear bumper height measurement is taken from the Rear fascia feature
line to ground level. Measure both sides and average the measurements.
- Compare the measurement to the rear bumper curb height specification.
Refer to
Trim Height Specifications
.
- If the measurement is outside of the specified range, replace the rear
springs. Refer to
Shock, Shock Component, and/or Spring Replacement
in Rear Suspension.
